[Hallicrafters] Hallicrafters 465 khz crystal substitute?

[Roger D. Johnson]

 These crystals were very common after the end of WW2. They were
for that eras FM transmitters (BC-604, etc). The crystal frequency
was multiplied 54 times to get to the final output frequency in the
20 to 40 Mhz range. This allowed them to get wide band FM with
crystal control of the oscillator. 

73, Roger